Lighting fixture part



x May 19, 1931. s. PERLA LIGHTING FIXTURE PART Filed Jan. -1'0, 1950INVENTOR I ,z 5am uel Pe a I M XQ-w.

ATTORNFV Patented May 19, 1931 i UNITED STATES PATENT OFFICE SAMUELPERLA, OF BROOKLYN, NEW YORK LIGHTING FIXTURE PART Application filedJanuary 10, 1930. Serial No. 419,883.

The present invention relates to lighting their adjacent faces areseparated to provide fixture parts, and is more particularly di-. roomfor a glass panel 13. The cross section rected toward the manufacture ofcast lightof these grille parts may be any shape which ing fixture armshaving receptacles to receive can be conveniently molded, andthey may beglass plates. provlded with ornament, asindi cated.

In Design Patent 80,570 for chandelier arm, In" order to provide morebearing surface granted February 25, 1930 on the joint applifor theglass and improve the appearance of cation of Rasmus R. Hellvik andSamuel thefixture part, the end membersli and 15, Perla for designpatent, there is shown a de' of the grille are provided with narrowflanges sign for arms adapted to be mounted 1n 16. All these flanges areconnected with one chandeliers. These arms are in a vertlcal set ofgrille parts, suchas the parts 126. plane and are provided with anupwardly They are not continuous, but have gaps 1-7 opening receptacleto support a vertlcal glass opposite the other grille parts 12]), panel.The mold employed in making this casting 15 The present inventionrelates to the manuis shown in Flgure It is a two-part permafacture ofsuch arms, and it is, therefore, an nent mold made, for example,ofbronze, and object of the present invention to provide a provided withinterior cavities to form the fixture part adapted for supporting suchcasting/t0 shape. The mold half at the glass panels and having the partsso arranged leftof Figure 4 is designed for the front part 2 that theycan be conveniently formed in twoof the casting, 1. e., all parts belowthe plane part permanent molds. A-A of Figures 2 and 3, exceptsuch partsOther and further objects will appear as as are between the end members14 and 15 r the description proceeds. of the grille. The mold half 21 atthe right The accompanying drawings show, for of Figure 4 1s slmllarlydesigned for the 25 purposes of illustrating the present invention,parts above the plane A A of Figures 2 one of the many possibleembodiments in and 3, except the grille parts betweentheend which theinvention may take form, it being members 14 and 15. V understood thatthe drawings are illustrative I Where the grille is to be formed, theinner of the invention rather than limiting the face of the mold half 20is displaced to the 0 same. right, as indicated at 20a, and the innerface 0 I th d i of the mold half 21 is displaced to the left,

Fixture 1 is a fragmentary elevational View s ln ll'catedat 21?)- Theseparts of the molds of a lighting fixture arm; form the ad a ent faces ofthe grille parts,

Fi 2 i ti on th fi 2-2 of separating them to form the passage way forFig 1; the glass. The parts 21?) of the mold half Figure 3 is afragmentary sectional view 21 also form the gaps 17 in the flanges 16 onthe line 33 of Figure 1; and thereby allowing the casting to be removedF lgure 4 is a sectional view through the from-the mold. The mold isdrafted, as will mold for casting the arm and showing the be apparentfrom the drawings. 40 arm in section along the line 4-1 of Figure 1. Thefixture arms made in the manner above Where the arm is of the designshown in described in detail may be used with orwiththe patentapplication above referred to, it out the glasslpanel, and may be madewithout has an upwardly extending portion indicated resort tocomplicated molds ordinarily emat 10 in Figure 1 herein, as well as ahorizonployed where undercuts are required. The 45 tally extendingportion as indicated at 11. grille arrangement is able to support the195 Between these two portions is a grille 12 havglass, form appropriateornament, and, at ing front or left handed parts 12a and real the sametime, imposes no casting difficulties. or right handed parts 126. 'It isobvious that the invention may be em- It will be apparent from thedrawings that bodied in many forms and constructions, and 50 the grilleparts 12a and 126 are so spaced that I wish it to be understood that theparticuvided with discontinuous drafted beyond lar form shown is but oneof the many forms. Various modifications and changes being possible, Ido not limit myself in any way with respect thereto.

What is claimed is:

1. A cast lighting fixture part having a grille formed of end membersand a plurality of cross members arranged in staggered relation andspaced to accommodate a glass panel.

2. A cast lighting fixture part having a grille formed of end membersand aplurality of cross members arranged in staggered relation andspaced to accommodate a glass panel, the side members having narrowflanges adjacent the cross members to one side of the space, the flangeshaving gaps opposite the cross member on the opposite side of the space.

3. A cast lighting fixture part having side members the adjacent facesof which are proa set of cross members connecting the side members anddisposed in the plane of the flanges, and a second set of cross membersconnecting the side members and located op posite the gaps in theflanges and in a plane spaced from that of the flanges to provide aspace for a glass panel.

4:. A lighting fixture part in the form of an integral casting havingside members and cross members arranged in staggered relation and spacedto accommodate a glass panel, the side members and cross members beingshaped to allow for draft in opposite directions from a medial plane,except opposite each cross member where the draft extends across themedial plane to the plane of the cross member.

5. A lighting fixture part in the form of an integral casting havingside members and cross members arranged in staggered relation and spacedto accommodate a glass panel, the cross members and the portions of theside members to one side of the medial plane of the casting beingdrafted in one direction,

the cross members and portions of the side members on the opposite sideof the medial plane being drafted in the opposite direction, except thatas to the portions of the side members opposite the cross members, theyare the medial plane to the plane of the cross members. g

6. The lighting fixture part of claim 5 characterized in that it isprovided with interrupted flanges in the plane of one set of crossmembers, the side members being drafted to the flanges.

SAMUEL PERLA.

flanges in one plane,

